Merge pull request #20 from adafruit/stemma_i2c

Added commented out board.STEMMA_I2C with explanation

Author: evaherrada

examples/is31fl3741_animation.py

@@ -11,7 +11,9 @@
 from adafruit_is31fl3741.adafruit_ledglasses import MUST_BUFFER, LED_Glasses
 from adafruit_is31fl3741.led_glasses_animation import LED_Glasses_Animation
 
-glasses = LED_Glasses(board.I2C(), allocate=MUST_BUFFER)
+i2c = board.I2C()  # uses board.SCL and board.SDA
+# i2c = board.STEMMA_I2C()  # For using the built-in STEMMA QT connector on a microcontroller
+glasses = LED_Glasses(i2c, allocate=MUST_BUFFER)
 glasses.set_led_scaling(255)
 glasses.global_current = 0xFE
 glasses.enable = True

examples/is31fl3741_glassesrings.py

@@ -6,7 +6,9 @@
 from adafruit_is31fl3741.adafruit_ledglasses import LED_Glasses
 import adafruit_is31fl3741
 
-glasses = LED_Glasses(board.I2C(), allocate=adafruit_is31fl3741.MUST_BUFFER)
+i2c = board.I2C()  # uses board.SCL and board.SDA
+# i2c = board.STEMMA_I2C()  # For using the built-in STEMMA QT connector on a microcontroller
+glasses = LED_Glasses(i2c, allocate=adafruit_is31fl3741.MUST_BUFFER)
 
 wheeloffset = 0
 while True:

examples/is31fl3741_rgbswirl.py

@@ -7,7 +7,9 @@
 from adafruit_is31fl3741.adafruit_rgbmatrixqt import Adafruit_RGBMatrixQT
 import adafruit_is31fl3741
 
-is31 = Adafruit_RGBMatrixQT(board.I2C(), allocate=adafruit_is31fl3741.PREFER_BUFFER)
+i2c = board.I2C()  # uses board.SCL and board.SDA
+# i2c = board.STEMMA_I2C()  # For using the built-in STEMMA QT connector on a microcontroller
+is31 = Adafruit_RGBMatrixQT(i2c, allocate=adafruit_is31fl3741.PREFER_BUFFER)
 is31.set_led_scaling(0xFF)
 is31.global_current = 0xFF
 # print("Global current is: ", is31.global_current)

examples/is31fl3741_simpletest.py

@@ -5,7 +5,9 @@
 import board
 import adafruit_is31fl3741
 
-is31 = adafruit_is31fl3741.IS31FL3741(board.I2C())
+i2c = board.I2C()  # uses board.SCL and board.SDA
+# i2c = board.STEMMA_I2C()  # For using the built-in STEMMA QT connector on a microcontroller
+is31 = adafruit_is31fl3741.IS31FL3741(i2c)
 
 is31.set_led_scaling(0xFF)  # turn on LEDs all the way
 is31.global_current = 0xFF  # set current to max